1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nirvana33 [79]
3 years ago
15

Can i have help with this question please i don’t understand

Mathematics
2 answers:
Vinil7 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

4x + 3y + x + 4y

= 4x + x + 3y + 4y

= 5x + 7y

4x + 3y + 2x - y

= 4x + 2x + 3y - y

= 6x + 2y

4x + 5y - ( x + 4y )

= 4x + 5y - x - 4y

= 4x - x + 5y - 4y

= 3x + y

2x - y + 3x + y

= 2x + 3x - y + y

= 5x + 0

= 5x

Law Incorporation [45]3 years ago
5 0

Answer:

See the picture I've attached...

You might be interested in
The probability of choosing a rotten apple from the bag of apples is Four-fifths. Which term best describes this probability? im
agasfer [191]
I think the answer is likely
5 0
3 years ago
Read 2 more answers
Which comes first? Intermediate algebra, or algebra?
xxTIMURxx [149]

Answer

Algebra

Step-by-step explanation:

Intermediate is the same as algebra 2

4 0
3 years ago
Read 2 more answers
Write down two factors of 18
777dan777 [17]

Answer:

2 and 9

Step-by-step explanation:

6 0
3 years ago
A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not. Determ
Hunter-Best [27]

Answer:

The 68% confidence interval for the population proportion of college seniors who plan to attend graduate school is (0.16, 0.24).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not.

This means that n = 100, \pi = \frac{20}{100} = 0.2

68% confidence level

So \alpha = 0.32, z is the value of Z that has a pvalue of 1 - \frac{0.32}{2} = 0.84, so Z = 0.995.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2 - 0.995\sqrt{\frac{0.2*0.8}{100}} = 0.16

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2 + 0.995\sqrt{\frac{0.2*0.8}{100}} = 0.24

The 68% confidence interval for the population proportion of college seniors who plan to attend graduate school is (0.16, 0.24).

4 0
3 years ago
1. Identify and explain one way in which the movie portrays historical facts accurately in the movie (History vs. Hollywood).
vichka [17]
In the nutcracker movie during Christmas the ‘follow the string to the presents’ was accurate and so was the costuming
8 0
3 years ago
Other questions:
  • What identity can be used to rewrite the expression 27x^3-64?
    6·1 answer
  • The difference between 4 twenty fives and three twenty fives
    6·1 answer
  • 3x - 5y = 17 y = -7 Solve by substitution.
    12·1 answer
  • I'd seriously appreciate it if anyone could help ASAP! I'll give Brainliest!
    11·1 answer
  • Micah is buying items for a birthday party. If he wants to have the same amount of each item, what is the least number of packag
    5·1 answer
  • Helpp pt.4 plzzzzzz​
    14·1 answer
  • Use the net as an aid to compute the surface area (rounded to the nearest integer) of the triangular pyramid with an equilateral
    13·1 answer
  • PLEASE HELPPP !!! I WILL GIVE BRIGHTEst !!!​
    10·1 answer
  • How to solve quadratic inequalities.
    10·1 answer
  • S is located at (9 -3) point T is located at (4 -3)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!